78results about How to "Improve glass strength" patented technology

A glass ceramic composition is provided which can be fired at a temperature of 1,000° C. or less to form a sintered body having a low relative dielectric constant, a small temperature coefficient of resonant frequency, a small change in capacitance before and after a loading test, a high Qf value, high electrical insulating reliability, and a high flexural strength. A glass ceramic composition forming glass ceramic layers laminated to each other in a multilayer ceramic substrate is also provided. The glass ceramic composition includes a first ceramic powder containing forsterite as a primary component; a second ceramic powder containing SrTiO₃ and/or TiO₂ as a primary component; a third ceramic powder containing BaZrO₃ as a primary component; a fourth ceramic powder containing SrZrO₃ as a primary component; and a borosilicate glass which contains Li₂O, MgO, B₂O₃, SiO₂, and ZnO, and also which contains at least one of CaO, BaO, and SrO.

This invention provides a protective sheet for glass etching, having excellent etching solution penetration resistance, non-contaminating property and peeling efficiency. The protective sheet comprises a substrate and a PSA layer provided on one face of the substrate, such that, when the protective sheet is adhered to a non-etching area when etching glass, it protects the non-etching area from an etching solution. The PSA layer is constituted with a PSA having a gel fraction of 60% or higher. The PSA is an acrylic PSA comprising an acrylic polymer as a primary component. The acrylic polymer is synthesized by polymerizing starting monomers comprising, as a primary monomer, a monomer represented by a formula: CH₂═CR¹COOR² (R¹ is a hydrogen atom or a methyl group, and R² is an alkyl group). The primary monomer comprises as a primary component a monomer with R² being an alkyl group having 6 or more carbons.

A glass housing includes an inner surface; an outer surface opposite to the inner surface; and a circumferential surface interconnecting the outer surface and the inner surface, wherein a distance between the inner surface and the outer surface ranges from 0.2 mm to 1 mm, each of the inner surface and the outer surface includes a planar portion and two curved portions extending outwardly from opposite edges of the planar portion toward a side of the inner surface, the curved portion is an arc surface having a radius of curvature ranging from 5 mm to 50 mm. The present disclosure further provides a manufacturing device and manufacturing method of manufacturing the glass housing.

The invention discloses an environmentally-friendly hot-melt pressure sensitive adhesive. The environmentally-friendly hot-melt pressure sensitive adhesive is prepared from, by weight, 25-35 parts ofa thermoplastic elastomer, 28-36 parts of modified petroleum resin, 6-10 parts of natural tackifying resin, 12-20 parts of a plasticizer, 2-3 parts of a modifying filler, 0.2-0.3 part of a coupling agent and 0.2-0.3 part of an antioxidant. The present invention also discloses preparation method of the hot-melt pressure sensitive adhesive. The thermoplastic elastomer is used as a matrix for the hot-melt pressure sensitive adhesive, the modified petroleum resin and the natural tackifying resin are used as tackifying resins, and no organic solvent is needed, so the raw materials are safe and environmentally friendly; the petroleum resin is modified, so the compatibility of the petroleum resin and the thermoplastic elastomer is improved, and the thermal stability of the hot-melt pressure sensitive adhesive is improved; and the reinforcing effect of the modifying filler improves the initial viscosity, the glass strength and the thermal stability of the hot-melt pressure sensitive adhesive are improved, so the environmentally-friendly hot-melt pressure sensitive adhesive with excellent performances is prepared.

The invention discloses safety energy-saving hollow glass, which comprises an internal layer of glass and an external layer of glass between which a cavity is kept; a coating film with the function of heat insulation and preservation is arranged outside the external layer glass; coating films with the functions of enhancing glass strength are arranged inside the external layer of glass and outside the internal layer of glass, insulating sound wave and filtering ultraviolet rays; and a coating film with the functions of absorbing, purifying and decomposing indoor radioactive and poisonous gases is arranged inside the internal layer of glass. The structure of the invention has the functions of obviously improving heat insulation and preservation property, increasing anti-seismic and anti-impact intensity, purifying indoor air, and absorbing, purifying, and decomposing radioactive gas radon, volatilizing gases of methyl aldehyde, benzene and methylbenzene, and bacterial viruses in building decoration materials.

The invention discloses a composite packaging adhesive film for a solar packaging material. The composite packaging adhesive film is composed of an ethylene vinyl acetate (EVA) adhesive film layer anda polyolefin elastomer (POE) adhesive film layer, and the EVA adhesive film layer is prepared from the following raw materials in parts by weight: 100 parts of EVA resin, 0.5-1.6 parts of a compositecross-linking agent, 0.5-1 part of a co-crosslinking agent, 0.05-0.2 part of an ultraviolet absorbent, 0.03-0.1 part of an antioxidant and 0.1-0.5 part of a tackifier, wherein the composite cross-linking agent comprises a peroxide and an crosslinking control agent. The invention further discloses a preparation method of the composite packaging adhesive film for the solar packaging material, and the preparation method comprises the following steps: melt extrusion of POE resin, melt extrusion of EVA resin and co-extrusion. According to the composite packaging adhesive film disclosed by the invention, the problems of bubbles and too low gel content of a cured film are solved, and meanwhile, the composite packaging adhesive film has the characteristics of good light transmittance and high glass strength. The preparation method can meet the requirements of process stability, laminating process stability and cross-linking curing efficiency during film preparation by casting at a same time.

A glass structure, such as a mirror facet, having a glass member, a composite structure and a support structure. The composite structure includes a rigid interlayer which is bonded to the glass member and exerts a compressive force thereon to place the glass member in compression. The support structure is used to mount the glass structure and prevents the glass member from collapsing due to the compressive force exerted by the rigid interlayer. The glass structure is particularly well adapted for use in forming heliostats, parabolic dishes, trough concentrators, or other like elements for use in solar power systems, and does not suffer from the limitations or prior forms of such devices.

A technical object of the present invention is to devise a glass substrate that is suitable for supporting a substrate to be processed to be subjected to high-density wiring and enables correct recognition of production information and the like, and a laminate using the glass substrate. In order to achieve the technical object, the glass substrate of the present invention has a total thickness variation of less than 2.0 μm and includes an information identification part formed of a plurality of dots.